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Annual Total Returns- Vanguard Federal Money Market Fund (Retail) [BarChart] - Retail - Vanguard Federal Money Market Fund - Investor Shares
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
Total 0.01% 0.01% 0.02% 0.01% 0.04% 0.30% 0.81% 1.78% 2.14% 0.45%